CN205618546U

CN205618546U - Rolling bearing

Info

Publication number: CN205618546U
Application number: CN201620412260.4U
Authority: CN
Inventors: 王洪铭
Original assignee: SHANGHAI ZHENGXIANG MACHINERY PARTS Co Ltd
Current assignee: SHANGHAI ZHENGXIANG MACHINERY PARTS Co Ltd
Priority date: 2016-05-09
Filing date: 2016-05-09
Publication date: 2016-10-05
Anticipated expiration: 2026-05-09

Abstract

The utility model discloses a rolling bearing, including bearing inner race, bearing inner race, bearing inner race and bearing inner race mutually support, install a plurality of balls between bearing inner race and bearing inner race, and ball sleeve is on the holder, and adjacent ball links together through the holder, the last ball groove that is used for installing the ball of offering of bearing inner race, the bottom in ball groove has an arc clearance a plurality of storages bits groove has been seted up on the diapire in arc clearance, is the degree of depth of storing up the bits groove 50 mu m 200 mu m. The utility model discloses a be provided with the arc clearance for leave the clearance between bearing inner race and the ball, and a plurality of storages bits groove has been seted up on the diapire in arc clearance, the coefficient of friction between ball and the bearing inner race can be reduced on the one hand to reduce friction power, on the other hand can store because of abrasive dust or the grit that the friction produced, reduces wearing and tearing, improves rolling bearing's life.

Description

A kind of rolling bearing

Technical field

The utility model relates to technical field of bearings, particularly relates to a kind of rolling bearing.

Background technology

Bearing is for determining rotary shaft and other part relative motion positions, playing supporting or guide effect Parts.The major function of bearing is supporting rotating shaft or other movable bodies, guides and rotates or mobile Move and bear the load being transmitted to by axle or parts on shaft.Bearing be the present age plant equipment in not The base parts and components that can or lack, quite varied in the application of national economy every profession and trade, its precision, performance, Life and reliability plays conclusive effect to the precision of main frame, performance, life and reliability.

By the difference of motor element frictional property, bearing can be divided into rolling bearing and the big class of sliding bearing two. Wherein rolling bearing is typically made up of outer ring, inner ring, rolling element and retainer four part, strictly speaking It is made up of outer ring, inner ring, rolling element, retainer, sealing, the big part of lubricating oil six.In simple terms, As long as possessing outer ring, inner ring, rolling element just to may be defined as rolling bearing.By the shape of rolling element, Rolling bearing is divided into ball bearing and the big class of roller bearing two.

At present, friction, this friction can be produced between the rolling element within rolling bearing and bearing inner race For dry friction, the outer surface of rolling element and the inner surface of bearing inner race can be caused to produce abrasive dust or abrasive particle, Owing to fricative abrasive dust or abrasive particle can aggravate the abrasion of rolling element and bearing inner race, reduce bearing Service life.

Utility model content

The utility model, in order to overcome deficiency of the prior art, provides a kind of rolling bearing.

The utility model is to be achieved through the following technical solutions:

A kind of rolling bearing, including bearing outer ring, bearing inner race, bearing outer ring is mutual with bearing inner race Coordinate, multiple ball is installed between bearing outer ring and bearing inner race, ball sleeve on retainer, Adjacent ball is linked together by retainer, and described bearing inner race offers for installing ball Ball grooves, the bottom of described ball grooves has arc-shaped gaps, opens on the diapire of described arc-shaped gaps Being provided with multiple nail collection slot, the degree of depth of described nail collection slot is 50 μm-200 μm.

As optimal technical scheme of the present utility model, this rolling bearing also includes left side dust-blocking ring and the right side Side block konisphere, in the left side cavity that described left side dust-blocking ring is arranged between bearing outer ring and bearing inner race, In the right side cavity that described right side dust-blocking ring is arranged between bearing outer ring and bearing inner race.

As optimal technical scheme of the present utility model, described nail collection slot uses Laser Processing to form, and The cross section of described nail collection slot is semicircle.

Compared with prior art, the beneficial effects of the utility model are: the utility model is by arranging There is arc-shaped gaps so that between bearing inner race and ball, leave gap, and at the end of described arc-shaped gaps Offer multiple nail collection slot on wall, on the one hand can reduce the coefficient of friction between ball and bearing inner race, Thus reduce frictional force, on the other hand can store because of fricative abrasive dust or abrasive particle, reduce abrasion, Improve the service life of rolling bearing.

Brief description

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with Drawings and Examples, are further elaborated to the utility model.It should be appreciated that this place is retouched The specific embodiment stated only in order to explain the utility model, is not used to limit the utility model.

Referring to Fig. 1, Fig. 1 is structural representation of the present utility model.

Described a kind of rolling bearing, including bearing outer ring the 1st, bearing inner race 2, bearing outer ring 1 and bearing Inner ring 2 cooperates, and is provided with multiple ball 3, ball between bearing outer ring 1 and bearing inner race 2 3 are enclosed within retainer 4, and adjacent ball 3 is linked together by retainer 4, described bearing inner race Offering the ball grooves 5 for installing ball 3 on 2, this rolling bearing also includes left side dust-blocking ring 8 He Right side dust-blocking ring 9, described left side dust-blocking ring 8 is arranged on the left side between bearing outer ring 1 and bearing inner race 2 In the cavity of side, described right side dust-blocking ring 9 is arranged on the right side between bearing outer ring 1 and bearing inner race 2 In cavity.

The bottom of described ball grooves 5 has arc-shaped gaps 6, offers on the diapire of described arc-shaped gaps 6 Having multiple nail collection slot 7, the degree of depth of described nail collection slot 7 is 50 μm-200 μm.By at bearing inner race It is machined with arc-shaped gaps 6 so that between bearing inner race 2 and ball 3, leave gap on 2, and described Offer multiple nail collection slot 7 on the diapire of arc-shaped gaps 6, on the one hand can reduce in ball 3 and bearing Coefficient of friction between circle 2, thus reduces frictional force, on the other hand can store because of fricative Abrasive dust or abrasive particle, reduce abrasion, improves the service life of rolling bearing.

Described nail collection slot 7 uses Laser Processing to form, and the luminous point of Laser Processing is little, and energy is concentrated, heat The zone of influence is little, not contact bearing inner ring, pollution-free to bearing inner race；And the cross section of described nail collection slot 7 For semicircle.

Above are only preferred embodiment of the present utility model, not new in order to limit this practicality Type, all any modification, equivalent and improvement made within spirit of the present utility model and principle Deng should be included within protection domain of the present utility model.

Claims

1. a rolling bearing, including bearing outer ring (1), bearing inner race (2), bearing outer ring (1) Cooperate with bearing inner race (2), be provided with between bearing outer ring (1) and bearing inner race (2) Multiple balls (3), ball (3) is enclosed within retainer (4), and adjacent ball (3) is by keeping Frame (4) links together, and described bearing inner race (2) offers the rolling for installing ball (3) Pearl groove (5), it is characterised in that: the bottom of described ball grooves (5) has arc-shaped gaps (6), in institute State and on the diapire of arc-shaped gaps (6), offer multiple nail collection slot (7), described nail collection slot (7) deep Degree is 50 μm-200 μm.

2. a kind of rolling bearing according to claim 1, it is characterised in that: also include left side gear Konisphere (8) and right side dust-blocking ring (9), described left side dust-blocking ring (8) is arranged on bearing outer ring (1) With in the left side cavity between bearing inner race (2), described right side dust-blocking ring (9) is arranged on outside bearing In right side cavity between circle (1) and bearing inner race (2).

3. a kind of rolling bearing according to claim 1 and 2, it is characterised in that: described storage bits Groove (7) uses Laser Processing to form, and the cross section of described nail collection slot (7) is semicircle.